Comparison between the potential of sewage sludge and municipal solid waste compost on enrichment of soil with some micronutrients

Mousavi, Seyed Majid; Ahmadabadi, Zahra

doi:10.22059/jci.2013.36386

Comparison between the potential of sewage sludge and municipal solid waste compost on enrichment of soil with some micronutrients

Document Type : Research Paper

Authors

Seyed Majid Mousavi ¹

zahra Ahmadabadi ²

¹ Ph.D. Student, Department of Soil Science, University of Tehran, College of Agriculture and Natural Resources, Karaj, Iran

² M.Sc., Department of Soil Science, Sari University of Agricultural Science and Natural Resources, Sari, Iran

10.22059/jci.2013.36386

Abstract

To compare potential of two organic materials including sewage sludge (SS) and municipal solid waste
compost (MSW) on micronutrients entry to soil, a research was conducted as split-plot arrangement based
on randomized complete block design with three replications in research field of Sari Agricultural
University. Main-plot (fertilizer treatments) included 20 and 40 ton/ha SS, 20 and 40 ton/ha SS + 50%
chemical fertilizer (CF), 20 and 40 ton/ha MSW, 20 and 40 ton/ha MSW + 1/2 CF, CF and control. Subplot
(years of application) comprised 3 treatments (1, 2 and 3 times of application). Results showed that
both fertilizer treatments and application period treatments enhanced accumulation of micronutrients in
soil significantly so that SS treatments had more influence compared to MSW treatments. The highest
total and available Fe and Zn, total Mn and Cu were obtained in SS treatments. While, the most available
Mn and available Cu was observed in 3 continuous years application of enriched 40 ton MSW and 20 ton
MSW with CF, respectively.

Keywords

compost

micro nutrients

Sewage sludge

Soil

years of application